Dump-car



0. E.- Moms AND J. 0. BENBOW.

DUMP CAR. APPLICATION FILED SEPT. 26, 1918.

1,35 1 1 1 4; P tented Aug- 31, 1920.

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0. E. MOATS AND J. D. BENBOW.

DUMP CAR.

, A PLICATION FILED SEPT. 26, I918. 1,351, 114, Patented Aug. 31, 1.920.

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Wiiiim 0. E. MOATS AND J. D. BENBOW.

DUMP CAR.

APPLICATION FILED SEPT. 26, 1.918.

1 35 1 1 1 4. Patgnted Aug. 31, 1920.

Pb 10 "W &flpwm M1 85 a 11 m 0. E. MOATS AND J. D. BENBOW. DUMP CAR.APPLICATION FILED SEPT. 26, I918. 1,351,1 l4. Patented Aug. 1920.

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STATES ORTUS E, MOATS, OF CHICAGO, AND JAMES B. :BENBOW', 9F AUTt-DHA,ILLXNOIS,

ASSIGNORS TO WESTERN VTHEELED SGRAPER COMPANY, OF AURORA, ILLI- NOIS, ACORPORATION OF ILLINOIS.

DUMP-CAR.

Application filed September 26, 1918.

To all "whom it may concern Be it known that we, ORTUS E. Moars, acitizen oi. the United States, and a. resident of Chicago, in the countyof Cool; and State of Illinois, and JAM D. Bnnnow, a citizen of theUnited States, and a resident oi Aurora, in the county of Kane and Stateoi Illinois, have invented certain new and useful lmprm ements in DumpCars, of which the following is a specification, reference being had tothe accompanying drawlugs.

Our invention relates to dump cars in whi h the car bed is centrallypivoted on the under body of: the car so as to be capable ot tilting todischarge its load at either side, and which are provided withpoweroperated means, such as a compressed air operated plunger, fortilting the bed and for restoring it to its operative position. Suchcars are usually provided with locking or supporting devices which holdthe car bed in its normal position while transporting the load, and whenthe dumping mechanism is actuated are automatically released at theappropriate side to permit the load to be dumped, the car bed supportingdevices at the opposite side of the car meanwhile remaining in operativeposition, to prevent the -ar bed from tilting beyond its normal positionwhen it is being restored to such position. Our present invention has todo more particularly with the devices for holding the car bed inoperative position and the mechanism for appropriately actuating themwhen the car bed is tilted, or restored to its horizontal position, andit consists in the improved construction hereinafter described andpointed out in the claims.

In the accompanying drawings Figure l is a side elevation of part of acar bed en'ibodying our improvements;

i 52 is a cross sectional view showing at one side the power-operatedmechanism for rocking the bed, and at the other side the devices forholding the bed in operative position with their connections. In saidfigure the .everal parts are shown in the position which they occupywhen the car is in its normal or load carrying position. it should belained in this connection that the parts shown at the left in saidfigure are located at about the longitudinal center of the car, whilethe parts shown at the right are lospecification of Letters Patent.

Patented An 31, 1920.

erial No. 255,795.

cated near the ends of the car, preferably centrally over the trucks; I

Fig. 3 is a view similar to Fig. 2 showing an early stage in the dumpingoperation;

Fig. t is a similar view showing the car bed and the operating mechanismin the position they occupy when the load is being discharged;

Fig. 5 is a view showing in plan the devices by which the sides oi thecar bed are supported when in operative position;

Fig. 6 is a detail, being an enlarged sec tional view on line (i(l ofFig. 2;

Fig. 7 is a view of the parts shown in Fig. 4-, showing the car bedtilted in the opposite direction;

Fig. 8 is a view showing a modification of some of the parts of the carbed supporting devices; and

Figs. 910-11 are views showing another modification.

In the drawings we have illustrated our improvements applied to a car ofa wellknown construction inwhich the car bed is pivoted along itslongitudinal center upon a series of pivots arranged at inter 'als uponthe under body of the car so that it may rock in either direction fromits normal position to discharge its load at either side of the car, andit should be understood that the mechanism provided at one side of thecar is duplicated at the other side. It will. therefore, sutiice todescribe only one set of the operating devices.

Referring; to the drawings: 9 indicates one of the trucks upon which theunder oody oi the car is mounted. such under body preferably consistingprincipally of 101 tudinal tbeanis 1011 spaced apart; nez thelongitudinal center thereof, and the usual transverse bolsters 13. llindicates standards carried by a plate 15 which e1 tends over and issupported by the i-beams 10- 11, such standards carrying pivots 16 uponwhich are mounted hangers 17 secured to the under side of the car hed 18in any suitable way. These parts may be of any well-known construction.and, if desired, may be arranged so that the car bed may be disconnectedfrom the under body, as is well understood in the art. 1.9 indicatescushioning stops of the usual type provided at the outer ends of thebolsters 13, as shown in Fi s. f2 and i. The car bed is rovide-:.i withthe usual side gates 20, arranged to be held up out of operativeposition in the usual Way when the car bed is tilted, to permit thedischarge of the load.

21 indicates one of the compressed air cylinders by the admission towhich of compressed air the car bed may be tilted or restored to itsoperative position. As shown in Fig. 1, these cylinders, of which thereare two, one at each side of the car, as above explained, are mounted atthe longitudinal center of the car, and are supported by the transversebeams 12. 22 indicates a hollow plunger mounted in the cylinder 21 andarranged to be forced upward by the admission of compressed air to saidcylinder. 23 indicates a rocking plunger rod mounted in the plunger 22and arranged to coperate with a ointed thrust bar composed of members2425 pivoted together at 26 to form a knuckle oint. The upper member 24is pivoted to one side of the car bed 18 by a pivot 27 so that it swingstransversely thereof, and the member 25 is connected by a pivot 28 witha link 29, which, at its inner end, is connected by a pivot 30, shown indotted lines in Fig. 2, to a depending arm 31 secured centrally to theunder side of the car bed 18, as shown in said figure. 32 indicates alink, one end of which is mounted on the pivot 30,and the other end ofwhich is connected by a pivot 33 to the upper end of the plunger rod 23.The construction and operation of the plunger 22, the plunger rod 23 andthe jointed thrust bar are substantially the same as shown and describedin the application of Jay B. Rhodes, Serial No. 231,577 filed April 30,1918, and in Letters Patent to Jay E. Rhodes No. 1,256,163, datedFebruary 12, 1918, and it will, therefore, be suilicient to explain thatwhen the plunger 22 at one side of the car is projected to tilt the bedso as to discharge its lead at the opposite side of the car, the upperend of its plunger rod engages the lower end of the member 25, which isthen alined with the member 24, and consequently elevates that side ofthe bed. The thrust bar at the opposite side of the car breaks at theknuckle joint and folds to permit that side of the bed to descend. Inrestoring the bed to its normal position, the plunger at the dumpingside of the car is projected, thereby raising that side of the.

bed, tl e plunger at the opposite side having been meanwhile retractedinto its cylinder. The parts thus far described separately consideredform no part of our present inven tion.

34 indicates struts, a pair of which are provided near each end of thecar at opposite sides thereof. Said struts are pivotally mounted attheir'lower ends on pivots 35' carried by the bolsters 13, as shown inFig. 2, and their upper ends are adapted to underlie blocks 36 which aresecured to the under side of the car bed, 18 in such position that whenthe parts are in their several normal positions, the struts 34 bearagainst the under sides of said blocks, as shown in Fig. 2, and preventtilting of the car bed in either direction. The engaging surfaces of thestruts 34 and blocks 36 are beveled, as shown at 37 in Fig. 2, tofacilitate operation of said struts in the manner hereinafter described.3839 indicate rock-shafts which extend longitudinally of the car overthe I-beams 10-11, respectively, as shown in Fig. 2. Adjacent to thecylinders 21 said rock-shafts carry inwardly extending cranks 40 havingpins 41, shown in Fig. 5. Said pins are adapted to be engaged by hooks42 carried by arms 43 which are intermediately pivoted upon the links 32by pivots 44, as shown in Fig. 2. The hooks 42 are normally held inengagement with the pins 41 by gravity, and the outer ends of the arms43 normally occupy a substantially horizontal position, as shown in saidfigure. They are so disposed, however, with reference to the car bedthat when the bed is tilted, as shown in Fig. 7, the outer ends of thearms 43 are depressed, thereby moving the hooks 42 up out of engagementwith the pins 41, as shown in said figure. Preferably the ear bed isprovided at its under side with brackets 45 which engage the arms 43 inthe manner illustrated. The purpose of this construction will behereinafter explained.

The rock-shafts 38-39 also carry inwardly projecting yokes 46 which arelocated approximately in the transverse planes in which the struts 34rock, as shown in Fig. 5, and are provided with downwardly extendinglugs 47 which normally bear upon the plate 15, as shown in Figs. 2 and7. These yokes 46 are provided with pins 48 which ex tend throughlongitudinal slots 49 in links .50 which, at their outer. ends, areconnected by pivots 51 to inwardly projecting lugs. 52 carried by thestruts 34 near their upper ends, forming toggle connections between therock shafts 38-39 and the struts 34. Preterably the outer ends of thelinks 50 are bifurcated as shown at 50 in Fig. 5. The inner ends of thelinks 50 extend between the members of the yokes 46, as shown in Fig. 5,and when said links are alined with said yokes they abut against theirrespective yokes substantially in line with the rock shaits upon whichsuch yokes are mounted, as shown in Fig. 2. Thus, endwise inwardmovement of the links 50 is then prevented, and the struts 34 areaccordingly held in operative position. 'lVhen, however, either of therock-shafts 38 or 39 is rocked, the pin 48 carried by the yoke 46thereof will swing the inner end of the link 50 connected there withupward far enough to permit it to move endwise in an inward direction,and conse quently permit the struts 34 connected there with to swinginwardly, as illustrated in Fig. 4. The rocking of one or the other ofsaid rock-shafts 38-39 occurs when the appropriate plunger is projectedto tilt the car bed to discharge its load. For example, the parts beingin the position shown in Fig. 2, when the plunger rod 23 is projected,its link 32 swings upward, and thereby, by reason of the engagement ofthe hook 42 with the pin 41, rocks the rock shaft 38 in acounterclockwise direction. The yoke 46 accordingly swings in the samedirection, and the pin 48 carries the inner end of the link 50 upward sothat it may move endwise into the position shown in Fig. 4. This releaseof the link 50 occurs before the plunger rod 23 engages the member 25 ofthe thrust bar, and consequently the strut 34-is released so that it mayswing inwardly before the plunger rod 23 begins to tilt the bed. Bothstruts 34 at the same side of the car are similarly actuated. lVhen thecar bed is rocked in the opposite direction to restore it to operativeposition the rock-shaft at the dumping side is not actuated because, asillustrated at the left in Fig. 7, the hook 42 is then held out ofengagement with the pin 41, by the bracket 45 and consequently theprojection of the plunger does not affect the rock-shaft, which remainsin its normal position and therefore holds the struts 34 at the oppositeside of the car in position to arrest the car bed and keep it from goingbeyond its normal position.

The struts 34 are positively moved inwardly to permit the bed to betilted in dumping its load by links 54, which, at their inner ends, areconnected by pivots 55 with laterally projecting arms 56 carried by thehangers 31, as shown in Figs. 3 and 7. At their outer ends said linksare yieldingly connected with the struts 34 by pivots 57 which passtl'irough slots 58 in the arms of bifurcated heads 59 carried at theouter ends of said links, as shown in Figs. 2 and 6. Thus, a slightamount of lost motion is permitted between the links 54 and the struts34. Between the members of the head 59 a spring 60 is provided which ismounted upon a rod 61 carried by a head 62 mounted on the pivot 57, asshown in Fig. 6, said spring being arranged'to normally hold the pivot57 at the outer ends of the slots 58.

It will. be apparent from the foregoing description that when the carbed is tilted to the right, as shown in Fig. 4, the rocking of the hanger 31 about the axis of the car, which is in line with the pivots 30and is therefore above the arms 56, will move the links 54 inwardly,thereby swinging the struts 34 in a counter-clockwise direction untilfinally they assume the position shown in Fig. 4. hen the bed isrestored to its normal position the swinging of the hangers 31 intheopposite direction positively moves the struts 34 back to theiroperative position. The purpose of providing the slots 58 is to permitthe struts 34 to be moved laterally or inwardly to a limited extent bythe yoke 46 and link 50 independently of the links 54 after the strutshave been unlocked at the beginning of the dumping operation, asillustrated in Fig. 3', as the links 54 do not come into effectiveaction until after the bed begins to tilt.

Instead of using the springs 60 at the outer ends of the links 54, asimilar result may be secured by employing links 54 connected with thestruts 34 by pivots 57 and connected with the hangers 31 by rods 61which pass through lugs 63 carried by the hangers 31, said rods 61having mounted thereon springs 60 as shown in Fig. 8. By thisconstruction the links 5-1: have a limited endwise movementindependently of the hangers 31, and are normally forced outward by thesprings 60 By the construction described, it will be noted that thestruts 34 are positively moved into their operative or into theirinoperative position as required in the operation of the car, and thatthis operation is controlled automatically by the actuation of theplungers either for tilting the car bed to dump its load, or to restoreit to its operative position.

It is obvious that instead of providing the links 50 with the slots 49as shown in the principal figures, the same results may be obtained byequivalent means, such as by using yokes 46 having transverse pins 6465spaced apart to receive the links 50 between them, and providing thelinks with lugs 66 adapted to engage the pins 64, as illustrated inFigs. 910-11. This is substantially a transposition of the constructionshown in the earlier figures, as the pins 6465 between the yoke membersin cooperation with the lug 66 are the equivalent of the slot 49 and pin48.

What we claim as our invention and desire to secure by Letters Patent,is

1. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging integral struts between the under body and the sidesof the bedfornormally holding the bed in its nor mal position, members connectedrespec tively with the under body and with said struts and cooperatingto hold said struts in operative position and operated by the actuationof said power operated mechanism to dump the bed to release the strutsat the dumping side of the car, and means for positively moving saidstruts into operative position when the car bed is righted.

2. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the underbody and the sides of the bed fornormally holding the bed in its normal position, means for holding saidstruts in operative position and operated by the actuation of said poweroperated mechanism to dump the bed to release the struts at the dumpingside of the car, and means connected with the car bed below the axisthereof and with said struts for moving said struts into op erativeposition when the car bed is righted.

3. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal posi tion, rock-shafts actuatedby said power operated mechanism, toggle connections between saidrock-shafts and said struts and operated by the actuation of said poweroperated mechanism to dump the bed to release the struts at the dumpingside of the car, and means for positively moving said struts intooperative position when the car bed is righted.

4:. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal position, rock-shafts actuated bysaid power operated mechanism, toggle connections between saidrock-shafts and'said struts and operated by the actuation of said poweroperated mechanism to dump the bed to release the struts at the dumpingside of the car, and means connected with the car bed and with saidstruts for moving said struts into operative position when the car bedis righted.

5. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal position, means for holding saidstruts in operative position and operated by the actuation of said poweroperated mechanism to dump the bed to release the struts atthe dumpingside of the car, and links connected with the car bed and with saidstruts for moving said struts into operative position when the car bedis righted.

G. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal position, rock-shafts actuated bysaid power operated mechanism, toggle connections between saidrock-shafts and said struts and operated by the actuation of said poweroperated mechanism to diunp the bed to release the .struts at thedumping side of the car, and links connected with the car bed and withsaid struts for moving said struts into operative position when the carbed is ri hted. 7L A dump car comprising a suitable under body, a carbed mounted to rock thereon, power operated mechanism for tilting thebed, laterally swinging struts between the under body and the sides ofthe bed for normally holding the bed in its normal position, means forholding said struts in operativc position and operated by the actuationof said power operated mechanism to dump the bed to release the strutsat the dumping side of the car, and links connected with the car bedbelow the axis thereof and with said struts for moving said struts intooperative position when the car bed is righted.

8. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal position, means for holding saidstruts in opera tive position and operated by the actuation o1 saidpower operated mechanism to dump the bed to release the struts at thedumping side of the car, and links connected with the car bed below theaxis thereof and with said struts for moving said struts into operativeposition when the car bed is righted, the connections between saidstruts and the car bed being arranged to permit limited inward movementof said struts independ ently of movement of the bed.

9. A dump car comprising a suitable under body, a car bed mounted torock thereon,

poweroperated mechanism for titlting the bed, laterally swinging strutsbetween the under body, and the sides of the bed for normally holcingthe bed in its normal position, rock-shafts actuated by said poweroperated mechanism, yokes carried by said rock-shafts, links connectedwith said struts and having a slotted connection with said yokes, andmeans for moving said struts into operative position when the car bed isrighted. 1

1O. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging struts between the under body and the sides of the bed fornormally holding the bed in its normal position, rook-shafts actuated bysaid power operated mechanism, yolres carried by said rock-shafts, linksconnected with said struts and having a slotted connection with saidyolres, said links connected with the car bed below the axis thereof andwith said struts for inovine' said struts into operative position whenthe car bed is righted.

11. A dump car comprising a suitable under body, a car bed mounted torock thereon, power operated mechanism for tilting the bed, laterallyswinging integral struts be tween the under body and the sides of thebed for normally holding the bed in its normal position, and membersconnected re spectively with the under body and with said struts andcooperating to hold said struts in operative position and operated bythe actuation of said power operated mechanism to dump the bed torelease the struts at the dumping side of the car.

12. A dump car comprising a suitable under body, a car bed mounted torock thereon,

power operated mechanism for tilting the bed, laterally swinging strutsbetween the under body and the sides of the bed for normally holding thebed in its normal position, rock-shafis actuated by said power operatedmechanism, and toggle connections between said rock-shafts and saidstruts and operated by the actuation of said power operated mechanism todump the bed to release the struts at the dumping side of the car.

ORTUEJ E. MOATS. JAMES D. BENBOV.

